Response Trace Plotoverview data how to example see also
Response Trace PlotStat > DOE > Mixture > Response Trace Plot
A response trace plot (also called a component effects plot) shows the effect of each component on the response. Several response traces, which are a series of predictions from the fitted model, are plotted along a component direction. The trace curves show the effect of changing the corresponding component along an imaginary line (direction) connecting the reference blend to the vertex.
Each component in the mixture has a corresponding trace direction. The points along a trace direction of a component are connected thereby producing as many curves as there are components in the mixture.
Response trace plots are especially useful when there are more than three components in the mixture and the complete response surface cannot be visualized on a contour or surface plot. You can use the response trace plot to identify the most influential components and then use them for a contour or surface plot.
Response: Choose a response to display on the plot
Trace Direction
Cox (proportion): Choose to use Cox's component direction.
Piepel (pseudocomponents): Choose to use Piepel's component direction.
Model Fitted in:
Proportions: Choose to refit the model in proportions.
Pseudocomponents: Choose to refit the model in pseudocomponents.
Reference Blend
Centroid of vertices: Choose to use the centroid (center point) of the experimental region as the reference blend.
Row ID: Choose to use a given design point as the reference blend, and then enter the worksheet row containing the design point.
Coordinates: Choose to specify reference blend coordinates, and then enter the coordinates in the box.